You do not need a wall of softboxes to make an editorial portrait. Often the opposite is true — restraint produces the stronger image.
Start with one window
Position your subject beside a single window and let the falloff create the mood. Move them closer for softness, farther for contrast.
When to reach for a strobe
Reach for strobes when you need to overpower the ambient light, freeze motion, or sculpt a subject away from natural falloff.
Modifiers matter more than power
A beauty dish and a softbox can produce two completely different portraits from the same strobe. Learn your modifiers before chasing watt-seconds.
Shape the light deliberately, and the image will shape itself.